std::chrono::weekday_last:: weekday

From cppreference.com
Utilities library
General utilities
Relational operators (deprecated in C++20)
constexpr std:: chrono :: weekday weekday ( ) const noexcept ;
(since C++20)

Retrieves a copy of the std::chrono::weekday object stored in * this .

Return value

A copy of the std::chrono::weekday object stored in * this .

Example

#include <chrono>
#include <iostream>
using namespace std::chrono;
 
int main()
{
    std::cout << std::boolalpha;
 
    auto wdl{Tuesday[last]}; // Last Tuesday of a month
    std::cout << (year_month_day{wdl/10/2019} ==
                  year_month_day{October/29/2019}) << ' ';
 
    wdl = {(wdl.weekday() + days(2))[last]}; // Last Tuesday is now last Thursday
    std::cout << (year_month_day{wdl/10/2019} ==
                  year_month_day{October/31/2019}) << '\n';
}

Output:

true true